Grownsince95
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+1!!! You see that fixture he built? well of course you did! ❤❤@beluga is the man for that.
+1!!! You see that fixture he built? well of course you did! ❤❤@beluga is the man for that.
Wow 5x cheaper than that diablo. What diodes? Bridgelux? I would prefer osram or Samsung if can be
Once I'm at the desktop, I'll love to help you make a configuration of it.So do you guys actually think this strategy will work? I've got all these damn strips I've got sitting around, and I haven't made anything yet. Should I spread them out far, and dial them down tight on the plants?
I think 10 of the strips are as follows, 76 watt each
58 Samsung lm301b LEDs in 2700k
16 Samsung lm301h LEDs in 4000k
16 Samsung lm301b LEDs in 6500k
4 - 660nm Deep Red LEDs
2 - 730nm Far Red(IR) LEDs
Then the other 10, I believe are this:
96 diode 2700K samsung lm301h 75 watt each.
So I was thinking like a latter type structure. The lights are like 1 1/4 inch wide and 16 inches long. I've got the aluminum angles 8 foot long, heatsinks, wires, powersupplies, self tapping screws, heatsink glue, 16 ga solid core wire and molex connectors.
Any idea's or tips on configuration?
Nah I'm all about variables. Rather get in deep than just dip the toesYeah... Bridgelux EB Gen 2s.
I dunno man... from what I've read, Bridgelux is on par with the Samsung Q series and some of what the guys at the LEDGardner forums have been testing swear they can run higher and more efficiently than they even spec.
They also have Gen 3s out and another horticulture series I'm forgetting the name of... vesta maybe?
Definitely worth the consideration for the price point... not to throw more variables at ya...
I see now bridgelux is way cheaper.Once I'm at the desktop, I'll love to help you make a configuration of it.
I'm no super expert and the guys at the LEDGardener forum could probably lead you way better. But I'll still love to go over it.
Would love to... also once I'm at the desktop... I suck on this phone. You got the model #'s?@beluga I'm off to bed but would you mind some help on this... im looking at it and I can get samsung strips for like $7 per 10w so if I do a 660w fixture it would be about 475 in just strips no?
Yeah in CAD. they are the 561C diodes... what's in my hlg currently. I move fast lolWould love to... also once I'm at the desktop... I suck on this phone. You got the model #'s?
Seems nuts for that price.
The source I'm getting for the samsungs diodes were around $18-23 per 75 w. (depending on configuration) The link is here, if anyone is interested. After getting them and inspecting up close, I can tell these are the real deal.@beluga I'm off to bed but would you mind some help on this... im looking at it and I can get samsung strips for like $7 per 10w so if I do a 660w fixture it would be about 475 in just strips no?
Before I just start going into configurations, I figure I should outline my considerations and how I landed on my decision.
So, my big question and what I have no personal experience with is the penetration of QBs vs strips.
I can pretty much guarantee strips have better spread and coverage... my 240w strip build covers 2'x4' easily because its 22" x 45", but I'm seriously dubious that a 240w QB fixture that's 10" x 26" can cover that as well. I feel like the light spread from LEDs is kinda squat, so, right there QBs seem a lot less efficient.
Again... no experience with QBs, so I'm just speculating. People obviously get great results out of them... but if you're going for optimal...
From there you have your two contending top dog strips as far as performance and efficiency... Samsung F-series and Bridgelux EB Gen 2. (May have changed recently, but the LED community is kinda about it right now, as far as I've gathered.)
For the same reason I'm dubious about QB coverage and penetration... Samsung F series strips' diodes are packed more tightly together... so, you're only using 4 two foot strips over 4' as opposed to 12 two foot Bridgelux strips...
Which is where heat management comes into play, too... stacking up a bunch of strips runs them soft which means you don't need to worry about crazy heatsinks... whereas QBs and F series definitely do.
Also, replacing strips is way more practical and efficient than replacing a board and replacing one of twelve $5 strips is better than replacing one of four $22 strips.
Not only for price, but also for missing a smaller fraction of your light output when something does fail.
From there, it really seems like just a brand preference thing.
Depending on who runs the test in what configuration, some people get better results out of Samsung's, some get better one's out of Bridgelux.
I definitely want to build a Samsung fixture and do a side by side. Might be a Christmas bonus thing... I've got 3 more 2 x 4 fixtures to deck out my tent with, so... it'll be neat.
Then there's the far red stuff. Looking into soldering my own MCPCBs for that... pretty cheap addition, surprisingly. But I'm curious how it effects the watt/sqft tolerance of the plants...
Should have hit the hay a while ago, but this shit gets my gears turning...
This is where I'm really not sure about legitimacy... or the specifics to soldering a strip... and why I'm adamant about buying from a reputable place like Digi-Key.The source I'm getting for the samsungs diodes were around $18-23 per 75 w. (depending on configuration) The link is here, if anyone is interested. After getting them and inspecting up close, I can tell these are the real deal.
Although, these are the most expensive out of the bunch, I think there worth it. Full spectrum 2700k Should be pretty sweet for ripening.
So, right off the bat, they're misrepresenting the product by listing its max output... like what would burn them up in no time...Strips are 24V and will use between up to 3000mA max and are most efficient at around 1400mA. The best drivers are the Meanwell HLG Drivers that have 1400mA ratings and are most efficient at this power.
Did a bit more reading today... DIY is attractive but I think for the benefits I'm looking for im not gonna save a lot of money. I need the efficacy to be as good as possible because of my access to wattage. Still toen but don't think the DIY will work for me. I'm likely to end up right where I am with my current light with better spread.So, based on my above considerations, and probably a lack of full understanding of the action of diodes... I think the big contenders are the Bridgelux EB series and the Samsung Q series
Bridgelux
Samsung
Both are single strip, both 80 CRI, similar forward voltage.
Samsung has a better lumen/watt.
(Debatably)
Bridgelux has a higher current rating.
(So you need fewer to reach your sweet spot with wattage/sqft)
However, that definitely makes the Samsungs more efficient.
Both should do fine without crazy heatsinks... aluminum square rods or even baking sheets work great and are cheap.
Extrusions are amazingly modular and aren't too much more expensive... plus, no drilling or modification required... has channels to tuck away your wiring... it's just great.
If you check out the first few pages of my diary, you'll see that you need to be more specific than I was to get your frame super solid, but mine is only slightly wobbly but fastened rock solid... nothing will detach and gravity takes care of keeping the strips facing downward.
It is Heavy. Probably 40lb? I have it hung in one of those standard iPower tents and I don't notice any bowing of the metal tube frame or anything.. but it seems .
Samsungs are still more than twice the price, however, and since you need more of them to meet your wattage, even more expensive.
Hopefully I didn't go off into too much unwanted detail here...
@Frankster I think we could still make something work out of the strips you've got there... I would just definitely run them at the 1400mA.. unfortunately, hacking that listed wattage in less than half.
Yeah, that's where my knowledge definitely flatlines.Did a bit more reading today... DIY is attractive but I think for the benefits I'm looking for im not gonna save a lot of money. I need the efficacy to be as good as possible because of my access to wattage. Still toen but don't think the DIY will work for me. I'm likely to end up right where I am with my current light with better spread.
Lol man.. my old school SE hps get no love anymore